{
  "id": "CVE-2022-0897",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2022-03-25T19:15:10.340",
  "lastModified": "2024-11-21T06:39:37.387",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd)."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado un fallo en el controlador nwfilter de libvirt. El m\u00e9todo virNWFilterObjListNumOfNWFilters no adquir\u00eda el mutex driver->nwfilters antes de iterar sobre las instancias virNWFilterObj. No hab\u00eda protecci\u00f3n para evitar que otro hilo modificara simult\u00e1neamente el objeto driver->nwfilters. Este fallo permite a un usuario malicioso y sin privilegios aprovechar este problema a trav\u00e9s de la API virConnectNumOfNWFilters de libvirt para bloquear el demonio de gesti\u00f3n de filtros de red (libvirtd/virtnwfilterd)"
    }
  ],
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          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
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          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2063883",
      "source": "secalert@redhat.com",
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